EQUILIBRATION CHAMBER, APPARATUS AND METHOD FOR ONLINE DETERMINATION OF THE ISOTOPIC COMPOSITION OF NON-EXCHANGEABLE STABLE HYDROGEN IN A SUBSTANCE SAMPLE

摘要

An apparatus for online determination of the isotopic composition of nonex- changeable stable hydrogen in a substance sample, comprises: a) an equilibration chamber (1) comprising a sample compartment (26); b) a detection device comprising a pyrolysis chamber (13) and a continuous flow isotope mass spectrometer (19) connected thereto; c) means for loading said sample compartment with a substance sample; d) means for controlled supply of a purging fluid (3) and of a hydrogen exchange fluid (6) to said sample compartment when it contains a substance sample; and e) means (11) for transferring a substance sample from said sample compartment to said detection device under medium tight-conditions.